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<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport"
        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>数组排序</title>
</head>
<body>
  <script>
    // 数组排序
    // 1. 翻转数组
    var arr = ['pink', 'red', 'blue']
    arr.reverse()
    console.log(arr)

    // 2. 数组排序（冒泡排序）
    var arr1 = [13, 4, 77, 1, 7]
    arr1.sort(function (a, b) {
      return a - b //升序的顺序排列
      // return b - a    降序的顺序排列
    })
    console.log(arr1)
  </script>
</body>
</html>